Comparation of heredity coefficients of productive traits in the population of Black White cows
2012
Spasić, Z., Faculty of Agriculture, Lešak (Serbia) | Milošević, B., Faculty of Agriculture, Lešak (Serbia) | Lalić, N., Faculty of Agriculture, Lešak (Serbia) | Samardžić, S., Faculty of Agriculture, Lešak (Serbia) | Ilić, Z., Faculty of Agriculture, Lešak (Serbia) | Ristanović, B., Faculty of Agriculture, Lešak (Serbia)
On the basis of genetic variability of economically important traits we orientate ourselves toward specific methods development and use in genetic improvement of a population. However, the heritability (h2) is important for giving the answer, which traits can be included in the breeding value evaluation of a population. For determining the heritability 1502 black white breed cows were used: 751 mothers and 751 daughters (together 6393 lactations). The heritability coefficient of investigated traits in cows was calculated using three methods: regression of daughters to mothers, intraclass correlation according to bulls-sires and, for those features for which recurrence exists during the life we used method of repeatability (R).
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